Short-time dynamics of colloidal suspensions in confined geometries

We analyze the short-time dynamical behavior of a colloidal suspension in a confined geometry. We analyze the relevant dynamical response of the solvent, and derive the temporal behavior of the velocity autocorrelation function, which exhibits an asymptotic negative algebraic decay. We are able to c...

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Detalhes bibliográficos
Autores: Pagonabarraga Mora, Ignacio, Hagen, M. H. J., Lowe, C. P., Frenkel, Daan, 1948-
Formato: artículo
Estado:Versión publicada
Fecha de publicación:1999
País:España
Recursos:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/18793
Acesso em linha:https://hdl.handle.net/2445/18793
Access Level:acceso abierto
Palavra-chave:Simulació per ordinador
Reologia
Col·loides
Suspensions (Química)
Computer simulation
Rheology
Colloids
Suspensions (Chemistry)
Descrição
Resumo:We analyze the short-time dynamical behavior of a colloidal suspension in a confined geometry. We analyze the relevant dynamical response of the solvent, and derive the temporal behavior of the velocity autocorrelation function, which exhibits an asymptotic negative algebraic decay. We are able to compare quantitatively with theoretical expressions, and analyze the effects of confinement on the diffusive behavior of the suspension.